The Greenness Of Skyscrapers

Edward Glaeser proposes:

In almost every metropolitan area, we found the central city residents emitted less carbon than the suburban counterparts....The policy prescription that follows from this is that environmentalists should be championing the growth of more and taller skyscrapers. Every new crane in New York City means less low-density development. The environmental ideal should be an apartment in downtown San Francisco, not a ranch in Marin County.